SCENARIO 11-10-B
You Are the Quality Control Manager of a Water

question 152

Short Answer

SCENARIO 11-10-B
You are the quality control manager of a water bottles company. One of the biggest complaints in the
past years has been the breakage and, hence, the concern on the durability of the connector between
the lid and the bottle which many users use as a handle for the bottles. You have started looking for
alternative replacement for the existing connector design. Three different vendors have proposed
different designs and provided data they have collected on their designs that have been subjected to a
durability test. The data on the number of times the connectors designed by them have been used to
lift the bottles before they break from random samples of 30 bottles are shown below and also
contained in the file Scenario11-10-DataB.XLSX. $$\begin{array} { l l l l l l l l l l l } \text { Vendor A } & 1460 & 1519 & 1364 & 1521 & 1628 & 1265 & 1552 & 1496 & 1411 & 1614 \\& 1508 & 1587 & 1484 & 1554 & 1459 & 1529 & 1515 & 1446 & 1517 & 1511 \\& 1563 & 1548 & 1536 & 1478 & 1665 & 1656 & 1544 & 1361 & 1573 & 1429 \\\text { Vendor B } & 2941 & 2975 & 3231 & 2890 & 3001 & 2930 & 2924 & 2916 & 3048 & 3066 \\& 3012 & 3108 & 2982 & 3126 & 3105 & 2879 & 2944 & 3066 & 2984 & 3057 \\& 3217 & 3058 & 2987 & 2977 & 3178 & 3252 & 3024 & 3156 & 3029 & 3103 \\\text { Vendor C } & 2020 & 1928 & 2135 & 1777 & 2005 & 2061 & 2029 & 1860 & 1967 & 2099 \\& 2031 & 2188 & 2137 & 1945 & 1952 & 1905 & 2031 & 1853 & 1974 & 2071 \\& 1966 & 2084 & 1998 & 2179 & 1988 & 2002 & 2178 & 1995 & 2076 & 1873\end{array}$$ Assume that and the number of times the connectors have been used to lift the bottles before they
break follows a normal distribution. You want to test to see if there is enough evidence of a difference
in mean number of times the connectors have been used to lift the bottles before they break across the
three vendors.
-Referring to Scenario 11-10-B, if a level of significance of 0.05 is chosen for the Tukey- Kramer procedure, which of the following is the correct conclusion on the order of the means
From the three designs? a) $\mu _ { A } > \mu _ { B } > \mu _ { C }$
b) $\mu _ { C } > \mu _ { B } > \mu _ { A }$
c) $\mu _ { B } > \mu _ { C } > \mu _ { A }$
d) $\mu _ { C } > \mu _ { A } > \mu _ { B }$

Understand the fundamental principles of designing a research study, including the role of control, variables, and operational definitions.

Critically evaluate claims based on correlational data and understand the limitations of correlational methods, including the distinction between correlation and causation.

Identify independent and dependent variables in experimental designs.

Explain the key ideas underlying major schools of thought in psychology, such as structuralism, functionalism, and psychoanalysis.

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Definitions:

High-Mach Personality

A trait characterized by manipulation and exploitation of others, a cynical view of human nature, and a focus on personal gain often without regard for ethical considerations.

Self-Monitoring

The practice of observing and regulating one's own behavior and performance, often to align with standards or goals.

High In Self-Monitoring

The characteristic of being highly aware of one's behavior and its effect on others, adjusting it according to the situation.

Low In Self-Monitoring

Describes individuals who are less likely to adjust their behavior or appearance according to social cues or contexts.